FDMC0310AS N-Channel MOSFET 30V 19A/21A Equivalent & Substitute Parts

Part Overview

The FDMC0310AS is an N-Channel MOSFET manufactured by onsemi, rated for 30V drain-to-source voltage with continuous drain current of 19A (Ta) and 21A (Tc). This device is housed in a surface mount 8-MLP (3.3x3.3) package and is part of the PowerTrench® and SyncFET™ series. The FDMC0310AS is currently classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design support and production continuity.

Substiute Parts

FDMC0310AS

onsemiIn Stock: 17301FDMC0310AS Datasheet

Current PartRFQ

FDMC0310AS-F127-L701

onsemiIn Stock: 3822FDMC0310AS-F127-L701 Datasheet

Parametric EquivalentRFQ

RJK0393DPA-00#J5A

Renesas Electronics CorporationIn Stock: 7642RJK0393DPA-00#J5A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the FDMC0310AS is determined by strict equivalence across the following critical parameters:

Parametric Equivalence Criteria:

• Drain to Source Voltage (Vdss): 30V
• FET Type: N-Channel
• Technology: MOSFET (Metal Oxide)
• Continuous Drain Current: 19A (Ta) / 21A (Tc) minimum
• Rds On (Max): 4.4mOhm or lower @ specified conditions
• Gate Threshold Voltage: 3V @ 1mA
• Gate Charge: 52nC @ 10V
• Input Capacitance: 3165pF @ 15V
• Operating Temperature Range: -55°C to 150°C
• Surface Mount Configuration

Substitute Classification:

Parametric Equivalent: FDMC0310AS-F127-L701 (onsemi) — Identical electrical specifications with alternative packaging configuration (Cut Tape & Digi-Reel®). Package variant is 8-WDFN (3.3x3.3) instead of 8-MLP, maintaining mechanical compatibility.

Similar Substitute: RJK0393DPA-00#J5A (Renesas Electronics Corporation) — Meets core voltage and technology requirements with enhanced current rating (40A Ta). Electrical parameters remain compatible within the 30V class. Package is 8-WPAK with Tape & Reel packaging. This device provides higher current capacity and active product status.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Parametric Equivalent):

FDMC0310AS-F127-L701 is the direct parametric equivalent with identical electrical specifications. This part maintains all critical performance characteristics including Rds On, gate charge, and input capacitance. The primary difference is packaging format (Cut Tape & Digi-Reel® versus standard packaging) and product status (Last Time Buy). Selection of this part is appropriate when existing designs require exact electrical performance matching and packaging compatibility with 8-WDFN footprint is acceptable.

For Enhanced Performance Substitute:

RJK0393DPA-00#J5A from Renesas Electronics Corporation provides a compatible alternative with superior current handling capability (40A Ta versus 19A Ta). This device maintains the 30V voltage rating and comparable Rds On performance (4.3mOhm versus 4.4mOhm). The active product status of RJK0393DPA-00#J5A ensures long-term availability and supply chain continuity. This substitute is suitable for applications where increased current capacity provides design margin or where future production volumes require an actively manufactured component. Package type is 8-WPAK, requiring PCB layout verification for mechanical compatibility.

All substitute parts maintain ROHS3 compliance, MSL Level 1 rating, and REACH unaffected status, ensuring regulatory alignment with the original FDMC0310AS.

Frequently Asked Questions (FAQ)

Q: Can FDMC0310AS-F127-L701 be used as a direct drop-in replacement for FDMC0310AS?

A: FDMC0310AS-F127-L701 is electrically identical to FDMC0310AS with matching Vdss, drain current, Rds On, gate charge, and input capacitance specifications. The package footprint differs (8-WDFN versus 8-MLP), both measuring 3.3x3.3mm. PCB layout compatibility must be verified for the specific package variant before implementation.

Q: What is the primary difference between FDMC0310AS and RJK0393DPA-00#J5A?

A: Both devices share the same 30V voltage rating and comparable Rds On performance. The RJK0393DPA-00#J5A provides higher continuous drain current (40A Ta versus 19A Ta) and is manufactured by Renesas Electronics with active product status. The package type differs (8-WPAK versus 8-MLP), requiring mechanical compatibility assessment.

Q: Why is FDMC0310AS classified as obsolete?

A: FDMC0310AS is listed as obsolete by onsemi. FDMC0310AS-F127-L701 carries Last Time Buy status, indicating limited future availability. RJK0393DPA-00#J5A maintains active status, ensuring continued supply and manufacturing support.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. FDMC0310AS, FDMC0310AS-F127-L701, and RJK0393DPA-00#J5A are all ROHS3 compliant with MSL Level 1 (Unlimited) moisture sensitivity rating and REACH unaffected status.

Q: What packaging formats are available for these parts?

A: FDMC0310AS is supplied in standard packaging. FDMC0310AS-F127-L701 is available in Cut Tape (CT) and Digi-Reel® formats. RJK0393DPA-00#J5A is supplied in Tape & Reel (TR) format. Packaging selection depends on production volume and assembly process requirements.

Q: Can RJK0393DPA-00#J5A be used in applications designed for FDMC0310AS?

A: RJK0393DPA-00#J5A is compatible for applications requiring 30V N-Channel MOSFET functionality. The higher current rating (40A Ta) provides additional design margin. Package type (8-WPAK) must be verified for PCB layout compatibility. Electrical performance remains within acceptable parameters for FDMC0310AS-class applications.

Q: What is the operating temperature range for all substitute parts?

A: All three parts operate across -55°C to 150°C junction temperature range, ensuring thermal compatibility across standard industrial and commercial applications.